Gardendale Water Hardness & Quality Report (2026)
Water Hardness
3.4 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
99.8 mg/L
Est. Daily Cost
$0.16
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Gardendale, your appliances are currently losing 8% efficiency due to mineral buildup.
| Appliance | In Gardendale | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.7 yrs | 8.5 yrs | -9% |
| Washing Machine | 11.4 yrs | 12 yrs | -5% |
| Water Heater | 13.2 yrs | 15 yrs | -12% |
Regional Water Comparison
How Gardendale compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Gardendale, Alabama | 59 mg/L | 4 ppt | 🟢 Soft | reservoir |
| Center Point, Alabama | 113 mg/L | 6 ppt | 🟡 Moderately Hard | reservoir |
| Birmingham, Alabama | 157.5 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
| Irondale, Alabama | 77 mg/L | 4.7 ppt | 🟡 Moderately Hard | reservoir |
| Mountain Brook, Alabama | 174 mg/L | 8.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How Gardendale compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Gardendale | 59 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Gardendale's Water Unique?
Local geology and source profile
Gardendale, Alabama, in Jefferson County — a Jefferson County city adjacent to Fultondale and Warrior in the north Birmingham metro — receives its water from Jefferson County Water Services, drawing from Lake Purdy or the Cahaba River (Jefferson County) through the north Birmingham metro distribution.
The moderately soft 59 mg/L hardness and TDS of 99.8 mg/L are relatively soft for an Alabama community — reflecting the Cahaba River's upper watershed position in the Jefferson County Appalachian Valley and Ridge where the softer Cambrian metasedimentary terrain produces less calcareous dissolution. The Cahaba River at Jefferson County — Cambrian Shady Dolomite (slightly calcareous — minor contributor), Ordovician Knox Dolomite (dolomitic — minor contributor), and Pennsylvanian Pottsville Formation (insoluble — primary dilutant from the Warrior Basin).
At 59 mg/L, Gardendale's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 4.0 ppt warrants a certified drinking water filter — the Jefferson County north Birmingham industrial corridor and Anniston Army Depot (Calhoun County — AFFF, regional) contribute to Gardendale's readings.
Geology & Source: Gardendale in Jefferson County draws from the Jefferson County Water Services on Lake Purdy or the Cahaba River (Jefferson County, north Alabama) — the Cahaba River at Jefferson County drains the Appalachian Valley and Ridge (Cambrian Shady Dolomite — slightly calcareous) and Ordovician Knox Dolomite — Alabama Jefferson County Cahaba River Valley and Ridge Cambrian-Ordovician watershed produces moderately soft water at 59 mg/L with TDS 99.8 mg/L.